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PowerMac G5는 Apple Corporation에서 2003년에 처음 제조한 데스크톱 컴퓨터입니다. 이 안내서는 2004년 Apple PowerMac G5 모델 번호 A1047 EMC 2061의 수리 과정을 검토합니다. 2006년에 먼저 개발자에게 그 후 소비자에게 Intel 스위치의 일환으로 판매가 중단되었습니다.

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Requests - Step by step to remove "Memory Heat sink"

Hi all,

My wish is a "Step By Step"- guide for changing the memory "Heat Sink".

My fanspeed is going up and down, pending between 300 rpm - to 2000 rpm.

The computer has been running with both AHT and calibrated with ASD.

After lots of reading about "Fan noise Problems" and test and calibration I have found out that the memory heat sink is the problem. It is placed on backside of the motherboard, on a own board, and its not possible to see it with optisk viewe.

To change it, the motherboard must bee removed.

MY QUESTION IS:

- Do I have to remove the liquid cooling system, to remove the motherboard, or not?

- What parts, and what screws has to removed for getting the motherboard loose?

Please advice with experience.

NOTE:

After lots of reading I have find out that Fan-noise is a common problem on G5 power mac, especcially on G5 2 - 2,5 GHz (2004). On one of my G5/2,5GHz(2004) (have 3 G5 = 1.8 (2004) + 2.3(late 2005) + 2.5(2004) the fan go up and down, and the Memory Heatsink gives unrealistic high temp,(65° Celsius ) from the second G5 start.

I think its a accurancy-related-problem, on the memory heat sink.

Is it possible to by a Memory Heat Sink as parts?

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i've tried to find anything about the memory heatsink - but i found nothing about it

since you are still searching for a solution i think the calibration with asd led to nothing

but i think you should contact me: markus.weiher@gmail.com

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Dubble thanks, great stuff to bee read about the G5 computers.

Markus is the "todays hero", i will say. I will know lots more about the arkitecture of a g5 computers now, only because of having the advantage of reading your answere and getting the mail, many thanks from me. :-)

hi göran,

i'm glad you could use the info ;-)

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The memory heatsink is on the reverse of the logicboard. If you pull out the logicboard, then flip it over, you will notice a very long heatsink. It will be connected to the logicboard via plastic clips and/or a few screws and bolts. When these are taken off, then you can replace the thermal compound as i did in mine. it should drop the temperature by 10 degrees celcius (in mine it did).

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I have a complete teardown/repair manual on PDF ......

edited a "problem" out

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Dubble thanks, great stuff to bee read about the G5 computers.

Markus is the "todays hero", i will say. I will know lots more about the arkitecture of a g5 computers now, only because of having the advantage of reading your answere and getting the mail, many thanks from me. :-)

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